2024/05/24 by Venkata Rama Manoj Pola, Pola, Venkata Rama Manoj, Ratna Kumar Annabattula +1
Engineering · Environmental Science · #FOS: Physical sciences #Geotechnical Engineering and Soil Mechanics #Geotechnical and Geomechanical Engineering #Landslides and related hazards #Soft Condensed Matter (cond-mat.soft)
paper · pdf · doi:10.48550/arxiv.2405.15720
openalex publication_date 2024/05/24 · openalex created_date 2024/05/28 · openalex updated_date 2026/07/28
A simple position-dependent body force-based confinement for simulating triaxial tests using the Discrete Element Method is presented. The said method is used to perform triaxial simulations on mono-disperse and segregated assemblies of glass spheres. The macroscopic load response obtained in simulations is validated with experimental load response. A mesh construction algorithm is presented to check whether the confinement applied in the triaxial simulations is accurate. The particle displacement data obtained from triaxial simulations are used to obtain a particle-wise average strain tensor. This is further used to compare the strain localisation between the mono-disperse and segregated assemblies. It is observed that, in the segregated assembly, the interface between the two particle phases acts as a barrier for strain localisation, and the smaller particles preferentially undergo a higher degree of shear strain on average.